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f36c6d0 e7b843e f36c6d0 e7b843e f36c6d0 e7b843e f36c6d0 e7b843e f36c6d0 e7b843e f36c6d0 e7b843e f36c6d0 e7b843e f36c6d0 e7b843e f36c6d0 e7b843e f36c6d0 e7b843e f36c6d0 e7b843e f36c6d0 e7b843e f36c6d0 e7b843e f36c6d0 e7b843e f36c6d0 e7b843e f36c6d0 e7b843e | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 | """Integration tests for NIM ↔ Cloudflare ↔ Gemini fallback logic."""
import asyncio
import pytest
from unittest.mock import AsyncMock, MagicMock, patch
import sys
import os
import time
sys.path.insert(0, os.path.join(os.path.dirname(__file__), '..'))
from production_server import (
FallbackManager,
FallbackConfig,
CircuitBreaker,
RedisManager,
HTTPException,
)
@pytest.fixture
async def mock_redis():
redis = MagicMock(spec=RedisManager)
redis.get_circuit_state = AsyncMock(return_value={"state": "closed", "failures": 0, "last_failure": 0})
redis.set_circuit_state = AsyncMock()
redis.get_cache = AsyncMock(return_value=None)
redis.set_cache = AsyncMock()
redis.check_rate_limit = AsyncMock(return_value=(True, 0.0))
return redis
class TestFallbackManager:
@pytest.mark.asyncio
async def test_uses_primary_when_healthy(self, mock_redis):
mgr = FallbackManager(mock_redis, FallbackConfig(primary="nim", secondary="cloudflare", tertiary="gemini", enabled=True))
provider, config = await mgr.get_active_provider()
assert provider == "nim"
assert config["api_base"] == "https://integrate.api.nvidia.com/v1"
@pytest.mark.asyncio
async def test_falls_back_when_primary_open(self, mock_redis):
mock_redis.get_circuit_state = AsyncMock(side_effect=[
{"state": "open", "failures": 5, "last_failure": 9999999999},
{"state": "closed", "failures": 0, "last_failure": 0},
])
mgr = FallbackManager(mock_redis, FallbackConfig(primary="nim", secondary="cloudflare", tertiary="gemini", enabled=True))
provider, config = await mgr.get_active_provider()
assert provider == "cloudflare"
@pytest.mark.asyncio
async def test_falls_to_tertiary_when_secondary_open(self, mock_redis):
import production_server
old_gemini = production_server.GEMINI_API_KEY
production_server.GEMINI_API_KEY = "test-key"
try:
mock_redis.get_circuit_state = AsyncMock(side_effect=[
{"state": "open", "failures": 5, "last_failure": 9999999999},
{"state": "open", "failures": 5, "last_failure": 9999999999},
{"state": "closed", "failures": 0, "last_failure": 0},
])
mgr = FallbackManager(mock_redis, FallbackConfig(primary="nim", secondary="cloudflare", tertiary="gemini", enabled=True))
provider, config = await mgr.get_active_provider()
assert provider == "gemini"
assert "generativelanguage" in config["api_base"]
assert config["api_key"] == "test-key"
finally:
production_server.GEMINI_API_KEY = old_gemini
@pytest.mark.asyncio
async def test_falls_to_mlx_when_all_cloud_down(self, mock_redis):
import production_server
old_mlx = production_server.MLX_ENABLED
production_server.MLX_ENABLED = True
try:
mock_redis.get_circuit_state = AsyncMock(side_effect=[
{"state": "open", "failures": 5, "last_failure": 9999999999},
{"state": "open", "failures": 5, "last_failure": 9999999999},
{"state": "open", "failures": 5, "last_failure": 9999999999},
{"state": "closed", "failures": 0, "last_failure": 0},
])
mgr = FallbackManager(mock_redis, FallbackConfig(primary="nim", secondary="cloudflare", tertiary="gemini", enabled=True))
provider, config = await mgr.get_active_provider()
assert provider == "mlx"
finally:
production_server.MLX_ENABLED = old_mlx
@pytest.mark.asyncio
async def test_raises_when_all_down(self, mock_redis):
import production_server
old_mlx = production_server.MLX_ENABLED
production_server.MLX_ENABLED = False
try:
mock_redis.get_circuit_state = AsyncMock(side_effect=[
{"state": "open", "failures": 5, "last_failure": 9999999999},
{"state": "open", "failures": 5, "last_failure": 9999999999},
{"state": "open", "failures": 5, "last_failure": 9999999999},
])
mgr = FallbackManager(mock_redis, FallbackConfig(primary="nim", secondary="cloudflare", tertiary="gemini", enabled=True))
with pytest.raises(HTTPException) as exc_info:
await mgr.get_active_provider()
assert exc_info.value.status_code == 503
finally:
production_server.MLX_ENABLED = old_mlx
@pytest.mark.asyncio
async def test_respects_disabled_fallback(self, mock_redis):
mgr = FallbackManager(mock_redis, FallbackConfig(primary="nim", secondary="cloudflare", tertiary="gemini", enabled=False))
provider, config = await mgr.get_active_provider()
assert provider == "nim"
@pytest.mark.asyncio
async def test_gemini_config(self, mock_redis):
import production_server
old_gemini = production_server.GEMINI_API_KEY
production_server.GEMINI_API_KEY = "gemini-test-key"
try:
mock_redis.get_circuit_state = AsyncMock(side_effect=[
{"state": "open", "failures": 5, "last_failure": 9999999999},
{"state": "open", "failures": 5, "last_failure": 9999999999},
{"state": "closed", "failures": 0, "last_failure": 0},
])
mgr = FallbackManager(mock_redis, FallbackConfig(primary="nim", secondary="cloudflare", tertiary="gemini", enabled=True))
provider, config = await mgr.get_active_provider()
assert provider == "gemini"
assert config["rpm_limit"] == 60
assert config["cost_per_1m_input"] == 0.075
finally:
production_server.GEMINI_API_KEY = old_gemini
@pytest.mark.asyncio
async def test_nim_config(self, mock_redis):
import production_server
old_nim = production_server.NIM_API_BASE
production_server.NIM_API_BASE = "https://custom.nvidia.com/v1"
try:
mgr = FallbackManager(mock_redis, FallbackConfig(primary="nim", secondary="cloudflare", tertiary="gemini", enabled=True))
provider, config = await mgr.get_active_provider()
assert provider == "nim"
assert config["api_base"] == "https://custom.nvidia.com/v1"
finally:
production_server.NIM_API_BASE = old_nim
class TestCircuitBreakerFallback:
@pytest.mark.asyncio
async def test_circuit_open_then_half_open_then_closed(self, mock_redis):
cb = CircuitBreaker(mock_redis, "nim")
assert await cb.can_execute()
for _ in range(5):
await cb.record_failure()
mock_redis.get_circuit_state = AsyncMock(return_value={
"state": "open", "failures": 5, "last_failure": time.time()
})
assert not await cb.can_execute()
mock_redis.get_circuit_state = AsyncMock(return_value={
"state": "open", "failures": 5, "last_failure": time.time() - 120
})
assert await cb.can_execute()
await cb.record_success()
mock_redis.get_circuit_state = AsyncMock(return_value={
"state": "closed", "failures": 0, "last_failure": 0
})
assert await cb.can_execute()
if __name__ == "__main__":
pytest.main([__file__, "-v"])
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